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Category Archives: Signo RT1

As a $2.25 pen, the Uniball Signo RT1 is definitely from the “value menu” of pens, but that doesn’t mean that it’s lacking in performance. On the contrary, this 0.38 mm Signo RT1 writes first time, every time, and has one of the crispest and cleanest lines that I can recall. I’ve been a fan of the Uniball Signo DX for years, but haven’t ever tried the retractable (RT) version. According to the literature, this RT1 model is an “upgrade” from the original RT. The RT1 features an “edge-less tip” (???) and newly formulated ink for an even smoother performance. I don’t have a clue what the “edge-less tip” means, but I can vouch for the smoothness of the ink. For such a fine line, the conical tip exhibits NO dragging or snagging. Which means that the tip doesn’t pick up stray paper fibers and clog.

Tip & grip (+ obligatory dust)

I love my Pilot Hi-Tec-C 0.4 mm pens, but they CAN be finicky. Sometimes I have to do just a bit of scribbling to get the ink flowing from the Hi-Tec-C’s needle tip. Though not a big deal, it can be an annoyance for some. That little bugaboo goes away completely with the Signo RT1.

Knock & clip in one

There’s nothing fancy here, but that’s fine by me. The richly colored plastic body, with its integrated clip/knock, and rubberized grip are all you need to get the writing job done. Since the clip is molded plastic, as opposed to metal, it IS possible to snap it off, if you’re rough on clips. I find the clip a bit loose fitting in a pocket, but that’s nit-picking. The rubberized grip is smooth and makes up about one third of the pen’s body, so no matter where you grip your pen, you’ll have no trouble with slippage.

No frills clip

Circling back to the “edge-less” tip thing, I MAY have discovered what this means when I cropped my photos. In the photo below, take a look at the tip of the RT1 on the left, vs the DX tips in the center and one the right.

Left to right: RT1 (0.38 mm), DX (0.38 mm), DX (0.28 mm)

To my eye, it looks like the “ball” in the tip of the RT1 is barely visible, as opposed to the DX tips, where the ball seems to be much more visible. Maybe that’s what Uniball means? Speculating here.

I’ve developed a “thing” for blue-black inks (especially for my fountain pens) and this one is particularly well-balanced. The color is rich and saturated, and spot on to my taste in blue-blacks.

For your viewing, and writing, pleasure

The Signo RT1 proves that you don’t have to drop a bundle on a pen to have a great writing experience. When an ink performs this well in a pen that costs so little, that’s value. Available in both 0.28 mm and 0.38 mm tips, and a bunch of colors, the RT1 certainly deserves a spot on your gel pen roster.

NOTE: I’d like to thank jstationery.com for reaching out and providing this review pen. They’re a US-based company specializing in fine Japanese stationery. Shipping is free for orders over $20. My honest opinion was offered here. I swear. In a court of law.